Unit+1+Math

Mr. May's Example: I wanted to put a path of square paver stones from the back door to the garden steps. The paver stones are each 1 foot by 1 foot. I wanted to make the path 3 feet wide. The distance from the door to the steps was 10 feet. I needed to know how many pavers to buy. I drew a picture to figure it out. How else could I have found my answer?